The answer is "B, refer to people electing leaders to make government decisions".
In general, republicanism alludes to the belief system grasped by individuals from a republic, which is a type of authentic government in which pioneers are chosen for a particular period by the dominance of the citizenry, and laws are passed by these pioneers to serve the whole republic, as opposed to choose individuals from a decision class, or nobility.
Basically, a representative democracy is an arrangement of government in which every qualified subject vote on agents to pass laws for them.